Research on Open-Cell Rigid Polyurethane Foam as Vacuum Insulated Panel Core

Abstract

Open-cell rigid polyurethane foam was taken as core material of the vacuum insulated panel, and the effects of open-cell ratio, density, cell-diameter and intensity on adiabatic performance of the vacuum insulated panel were simply discussed. The effect of vacuum degree on it is also discussed. The pre-treated craft of vacuum insulated panel manufacture is introduced too. If the open-cell rigid polyurethane foam was taken as the core-material and pretreated craft was carried, the vacuum insulated panel’s thermal conductivity can be less than 10mW/(m•K).

Thermal insulation properties of green vacuum insulation panel using wood fiber as core material

“…Therefore, it not only affects the solid heat transfer, gas heat transfer, and radiative heat transfer of the VIP, but it is also one of the key factors that affects the stability, size, and thermal conductivity of the core (Baetens et al 2010). Traditional core material is usually comprised of porous materials, such as fiber (glass fiber) (Chen et al 2015), organic foam (polyurethane foam) (Kan and Han 2012), and powder (fumed silica) (Lim et al 2017). However, these are all chemical materials.…”